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Risk factors for the development of gallstone recurrence following medical dissolution. The British-Italian Gallstone
M L Petroni1, R P Jazrawi, P Pazzi
1St George's Hospital Medical School, London, UK.
Insights
Gallstone recurrence is higher with multiple primary stones and longer dissolution times. Biliary sludge also increases recurrence risk after non-surgical gallstone treatment.
Area of Science:
- Gastroenterology
- Hepatology
- Biliary tract disease research
Background:
- Gallstones affect a significant portion of the population.
- Non-surgical treatments offer an alternative to cholecystectomy.
- Understanding recurrence factors is crucial for patient selection and management.
Purpose of the Study:
- To identify risk factors for gallstone recurrence after non-surgical dissolution therapy.
- To evaluate patient and treatment-related variables influencing gallstone recurrence.
- To inform clinical decision-making for non-surgical gallstone management.
Main Methods:
- Prospective follow-up of 163 patients post-gallstone dissolution across 6 centers in the UK and Italy.
- Utilized ultrasound and clinical assessments every 6 months for up to 6 years.
- Analyzed patient demographics, gallstone characteristics, treatment modalities, and follow-up variables for recurrence risk.
Main Results:
- Forty-five gallstone recurrences were documented.
- Multiple primary gallstones and longer dissolution times were significantly associated with increased recurrence.
- Biliary sludge development during follow-up also correlated with higher recurrence rates.
Conclusions:
- Patients with single primary gallstones are ideal candidates for non-surgical treatment due to lower recurrence risk.
- The association of recurrence with biliary sludge and dissolution time suggests impaired gallbladder motility may play a role.
- Non-surgical gallstone dissolution requires careful patient selection and monitoring for recurrence.
Objective:
To assess risk factors for gallstone recurrence following non-surgical treatment.
Design:
A prospective follow-up of a multicentre cohort of post-dissolution gallstone patients.
Setting:
Six gastroenterology units in the UK and Italy.
Participants:
One hundred and sixty-three patients with confirmed gallstone dissolution following non-surgical therapy (bile acids or lithotripsy plus bile acids), followed up by ultrasound scan and clinical assessment at 6-monthly intervals for up to 6 years (median, 25 months; range, 6-70 months).
Outcome Measures:
Subject-related variables (sex, age, height, weight, body mass index), gallstone-related variables (number, diameter, presence of symptoms, months to complete stone clearance), treatment modalities (bile acid therapy, extracorporeal shock wave lithotripsy) and follow-up related variables (weight change, use of non-steroidal anti-inflammatory agents, statins, pregnancies and/or use of oestrogens) were assessed by univariate and multivariate analysis as putative risk factors for gallstone recurrence.
Results:
Forty-five gallstone recurrences were observed during the follow-up period. Multiple primary gallstones and length of time to achieve gallstone dissolution were the only variables associated with a significant increase in the recurrence rate. Appearance of biliary sludge during follow-up was also significantly related to development of gallstone recurrence. Use of statins or non-steroidal anti-inflammatory agents did not confer protection against recurrence.
Conclusions:
Patients with primary single stones are the best candidates for non-surgical treatment of gallstones, because of a low risk of gallstone recurrence. The positive association of recurrence with biliary sludge formation and time to dissolution of primary stones may provide indirect confirmation for the role of impaired gallbladder motility in the pathogenesis of this condition.
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